Catalytic composite particularly useful for the oxidation of mercaptans and the removal of gums contained in a sour petroleum distillate

DETAILED DESCRIPTION I claim: 1.
A regeneratable, gum resistant catalytic composite for sweetening a sour petroleum distillate, prepared by the method comprising: (a) washing a basic anion exchange resin with an alcohol; (b) contacting said basic anion exchange resin with an aqueous caustic solution of a metal phthalocyanine mercaptan oxidation catalyst to produce a catalyst-impregnated basic anion exchange resin; and (c) drying said catalyst-impregnated basic anion exchange resin.
2.
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin.
3.
The catalyst composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous styrene-divinylbenzene cross-linked copolymer matrix.
4.
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous styrene-divinylbenzene cross-linked copolymer matrix and primary amine functional groups.
5.
The catalytic composite of claim 1 wherein said anion exchange is an amine anion exchange resin comprising a porous styrene-divinylbenzene cross-linked copolymer matrix and secondary amine functional groups.
6.
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous cross-linked styrene-divinylbenzene copolymer matrix having tertiary amine function groups.
7.
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous styrene-divinylbenzene cross-linked copolymer matrix and quaternary amine functional groups.
8.
The catalytic composite of claim 1 wherein said metal phthalocyanine mercaptan oxidation catalyst comprises from about 0.
1 to about 10 wt.
% of said catalytic composite.
9.
The catalytic composite of claim 1 wherein said metal phthalocyanine mercaptan oxidation catalyst comprises from about 0.
1 to about 2 wt.
% of said catalytic composite.
10.
The catalytic composite of claim 1 wherein said metal phthalocyanine mercaptan oxidation catalyst is cobalt phthalocyanine